[P3300, MDA Compact III  upgrading etc.] me_:
Sorry if these questions have been asked before, but i need clear answers please...

1) Will Upgrading my ROM to B&B 4.1 invalidate my warranty?

2) Do i need to USPL my P3300? - it's a HTC branded device (not from other networks)

3) The following instruction were for B&B v.2.0 , will they work for 4.1?

1. download the file Artemis_USPL.zip
2. unpack into the folder c:\USPL
3. download the file ARTEMIS_Black_Blue_v2.zip
4. unpack into the folder c:\ROM
5. soft reset your phone and have it charged over 50% (I have it fully charged)
6. wait until the system starts on your Artemis
7. turn on flight mode (probably not necessary, but I wanted to minimize any risks)
8. connect your Artemis to PC with a USB cable
9. wait until ActiveSync icon in your tray (lower right corner of your windows desktop) turns from gray to green. If you connect your Artemis for the first time to PC, you do not need to set up synchronization, just click "cancel" on the first screen of "Synchronization Setup Wizard"
10. while ActiveSync icon is green, run c:\USPL\start_uspl.exe
11. a DOS screen will pop up with the text "Initializing: 0.." in the bottom indicating probably seconds from the start (it stopped around 70 in my case after about 1.5 min)
12. DOS screen disappears and PDA Phone ROM update utility pops up
13. at the same time, your Artemis turns blank (orange/green LED turns off as well)
14. tick the check box next to " I understand..." and then click Next
15. tick the check box next to " I completed..." and then click Next
16. a box saying "Verifying information on your PDA..." pops up
17. on the next screen click Update button
18. next screen says "Upgrade to ... image version 9.99" - click Next
19. Next screen says "You are now ready to update..." - click Next, a window with a blue progress bar appears with a text "Updating ROM image..", it quickly runs to 100%
20. next screen says "Congratulations! ..." - click Finish
21. your phone turns on and boots into your old system, however it should be CID unlocked now
22. your Active Sync should reestablish and icon turns green again
23. do not touch anything (phone or USB cable) and run C:\ROM\ROMUpdateUtility.exe (make sure activesync icon is green)
24. PDA Phone ROM Update utility window appears, tick the check box next to " I understand..." and then click Next
25. tick the check box next to " I completed..." and then click Next
26. a box saying "Verifying information on your PDA..." pops up
27. on next screen click Update button (says "Current information...")
28. next screen says "Upgrade to ... image version BnB2.0" - click Next
29. Next screen says "You are now ready to update..." - click Next
30. a window with a blue progress bar appears with a text "Updating ROM image..", your Artemis will have light gray screen with blue progress bar showing the progress of flashing - do not touch anything and wait (it took 2-3 minutes on my 3 years old PC)
31. next screen says "Congratulations! ..." - click Finish
32. your Artemis turns on and starts booting, you can disconnect it from PC now
33. the boot screen remains the same (T-Mobile in my case), so do not panic!! it is normal
34. wait until calibrate the screen appears, calibrate, choose time zone and you are ready to use your new OS
35. let me know if this manual was clear enough, whether it helped you and please suggest potential changes for improvement

4) If i brick my device, will i be able to reflash the original ROM back on to it?

5) If i do upgrade will the GPS work properly? - and how would i get TOMTOM on it?

Sorry if you have seen these questions many times before,

All help will be greatly appreciated, Thanks